Expanded metal lath



- Dec. 22, 1931. 7 F. c. AREY EXPANDED METAL LATH Filed July 28. 1927 xxwxx EX- kJ/JJJJJ &Q&%% 2 xgxxm && 3

INVENTOR. fad BY- ATTORNEY Patented Dec. 22 1931 UNITED STATES PATENT caries FRED G. AREY, OF OAK PARK, ILLINOIS, ASSIGNOB T0 JOHN W. GLEASO'N, FRANK W.

BORA, WILLIAM F. FREUDENREICH, FREDERICK H. CHETLAIN, AND SAID FRED 0. g AREY AS TRUSTEES, FOR- U. S. LATI-I. AND MACHINERY CO. V

EXPANDED METAL LAIH Application filed July 28,

The present invention relates to expanded metal lath consisting of sections or panels of diamond mesh alternating with longitudinal ribs; and has for its object to produce a construction in which all of the longitudinals shall have their flat faces parallel'with each other and lying at an angle to the plane of the sheet in order that the plaster may be uniformly applied by sweeping the same transversely across the sheet in one direction.

The various features of novelty whereby, my invention is characterized will hereinafter be pointed out with particularity in the claims; but, for a full understanding of my invention and of its objects and advantages, reference may be had to the following detailed description taken in connection with the accompanying drawings, wherein:

Figure 1 is a plan view of the slitted unexpanded sheet from which my improved expanded metal is made; Fig. 2 is a plan view of a fragment of the finished product; and Fig. 3 is a section taken approximately on line 33 of Fig. 2.

Referring to Figure 1 of the drawings, A represents a metal sheet divided into slitted sections alternating with narrow solid sections adapted to form longitudinal ribs. The slits are made in the manner commonly em ployed in the manufacture of diamond mesh, namely in parallel broken lines arranged in staggered relation to each other. The slitted sections are divided into two groups B and G alternating with each other and separated from each other by a narrow longitudinal unslit'portion D. The slits in the two groups of slitted sections are oppositely inclined. In expanding the sheet I cause the slitted portions to turn on edge to form ribs 1 lying at an angle to the plane of the sheet and parallel with the longitudinal strands 2 of the diamond mesh. The ribs and the longitudinal strands are connected by the transverse strands 3 of the diamond mesh; these transverse strands extending from the front edge of one rib to the rear edge of the opposite rib.

When plaster is swept across the face of the lath, say from the bottom toward the top as viewed in Fig. 3, it will be seen that it is met by the broad faces of all of the longistituting the appended claims.

1927. Serial No. acac a tudinals, namely the longitudinal strands of the mesh and the longitudinal ribs, lnstead'of meeting someedges and some broad flat'faces' as is usually the case. r

willfthus be seen that my improved sheet 7 maybe said to bemade up of expan ed Sections, alternating with solid sections, each 'pair of consecutiv e p nded se tion j eing symmetrical with respect to a plane lyingapproximately parallel to the lengths .ofthe transverse strands and cutting through the metal of the intervening solid section.

l Vhile l have illustrated and described with "particulari'ty only a single preferred form of my invention, I do not desire to be limitedto the exact structural details gthus illustrated and described but intendto cover all forms and arrangements 'which come within the definitions of my invention con- 1 claim:

1. A sheet of expanded metalcomprising expanded sections alternating with'longitudinal solid sections, said expanded sections consisting of transverse strands and longi-. tudinal strands the two expanded sections lying on opposite sides of one of said solid sections being symmetrically disposed with respect to the latter, said solid sections and said longitudinal strands having their bIOfld-g faces lying parallel to each other and at an angle to the plane of the sheet, and each portion of the sheet made up of two expanded sections and an interposed solid section being symmetrical with respect to a plane lying approximately parallel with the lengths of the transverse strands and cutting through the metal of saidsolid section.

2. A sheet of expanded metal comprising expanded sections alternating with longitu dinal fiat rib sections, said expanded sections consisting of transverse strands and longitudinal strands, said rib sections and said;

longitudinal strands having their flat faces lying parallel to each other and at an angle.

Verse strands on the opposite side of the rib are stepped downwardly from the preceding strands as the distance from said rib increases, and each portion of the sheet made up of two expanded sections and an interposed sohd section being symmetrical with respect to a plane lying approximately parallel with the lengths of the transverse strands and cutting through the metal of said solid section.

3. A sheet of expanded metal comprising expanded sections alternating with longitudinal fiat rib sections, said expanded sections consisting of diamond mesh certain of whose strands form longitudinals, the flat faces of the rib sections and of all the longitudinals lying parallel to each other and at an angle to the plane of the sheet, and each portion of the sheet made up of two expanded sections and an interposed solid section being symmetrical with respect to a plane lying approximately parallel with the lengths of the transverse strands and cutting through the metal of said solid section.

4. A sheet of expanded metal comprising expanded sections alternating with longitudinal fiat rib sections, said expanded sections consisting of diamond mesh certain of Whose strands form longitudinals, the fiat faces of the rib sections and of all the longitudinals lying paralled to each other and at an angle to the plane of the sheet, the elements of two of said expanded sections on opposite sides of one of the ribs being symmetrically disposed with respect to a plane extending through such rib between and parallel with such sections.

In testimony whereof, I sign this specification.

FRED C. AREY. 

